HTML not loaded Completely in Word

I have written a HTML in Word, it was fine all the time, Until one day, when I try to open it, it became few lines an then stop loading other parts of the HTML,
and said it is loaded, but I try it on other computers, it works fine. I even try to reinstall Word (remove and install). same problem appears. Now the Word in my computer always gives me the problem on any HTML I created, but not the document. What is the problem of my Word files?